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Finding the Fourth Proportional to 492,267, 679,328.76 and 265,912.56

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Solution

The fourth proportional to 492,267, 679,328.76 and 265,912.56 is: 366,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,267 : 679,328.76 = 265,912.56 : x
  2. Step 2: Convert to fraction form
    492,267/679,328.76 = 265,912.56/x
  3. Step 3: Cross multiply
    492,267x = 679,328.76 × 265,912.56
  4. Step 4: Simplify right side
    492,267x = 180,642,049,653.23
  5. Step 5: Solve for x
    x = 180,642,049,653.23/492,267
  6. Step 6: Final answer
    x = 366,959.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.